Headphone



FIG. 1 is a front, top, right perspective view of a headphone showing mynew design;

FIG. 2 is a front, bottom, right perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a left side elevational view thereof.

Portions in broken lines are for an illustrative purpose only and formno part of the claimed design.

CLAIM The ornamental design for a headphone, as shown and described.